The difference between the origin of Alzheimer's disease (AD) and its symptoms is an obstacle to finding effective treatments. Scientists focused on amyloid-β (Aβ) plaques and tau aggregates to slow neurodegeneration and cognitive decline. Without identifying what causes AD, approved treatments do not provide much benefit. However, new findings suggest that restoring lithium levels in the brain could prevent and treat AD. Not just any lithium would work, just the forms that do not bind to Aβ.
In the tumor microenvironment, cancer cells activate various signaling pathways to promote their growth. This includes the formation of blood vessels. However, the circulatory system is not the only one attracted to the tumor. Researchers at Sanford Research have uncovered a mechanism to circumvent the immune response that would destroy them.
Deep learning tools for protein design can also be used to create molecules that bind to them. Certain peptides, such as intrinsically disordered proteins (IDPs), are challenging to target due to their variable nature. However, scientists from the lab of Nobel laureate David Baker have developed a method to generate binders for IDPs by searching the world’s largest protein database with their AI-powered tool RFdiffusion.
Deep learning tools for protein design can also be used to create molecules that bind to them. Certain peptides, such as intrinsically disordered proteins (IDPs), are challenging to target due to their variable nature. However, scientists from the lab of Nobel laureate David Baker have developed a method to generate binders for IDPs by searching the world’s largest protein database with their AI-powered tool RFdiffusion.
Bacteria also defend themselves against pathogen attacks using mechanisms like those of the immune system. But if there is a system to repel an attack, it can also be dismantled. Scientists at the University of Southampton have described the components of Kiwa, a protein complex that blocks the entry of phage DNA, which are viruses that infect bacteria. They have also uncovered how Kiwa interacts with other bacterial defense strategies.
An experimental gene therapy based on the prime editing technique could become an effective treatment for alternating hemiplegia of childhood, a severe and currently incurable rare disease. David Liu’s lab at the Broad Institute, the inventor of this gene edition methodology, together with scientists from The Jackson Laboratory, successfully reversed the effects of five mutations associated with this disorder in a mouse model.
An experimental gene therapy based on the prime editing technique could become an effective treatment for alternating hemiplegia of childhood, a severe and currently incurable rare disease. David Liu’s lab at the Broad Institute, the inventor of this gene edition methodology, together with scientists from The Jackson Laboratory, successfully reversed the effects of five mutations associated with this disorder in a mouse model.
Current treatments for Alzheimer’s disease have limited effects. While they can slow cognitive decline or alleviate symptoms, they do not reverse this complex neurodegenerative condition caused by multiple factors. Researchers from the Gladstone Institutes and the University of California, San Francisco (UCSF) have screened FDA-approved drugs in search of agents that could potentially modify the disease.
We all look different to HIV, a virus that destroys the immune system. The defensive cells record every interaction with foreign agents, infections from viruses and bacteria, but also with mechanisms occurring within the body, such as microbiome metabolism, the effects of aging, or the development of diseases. At a preconference session at the 13th IAS Conference on HIV Science (IAS 2025), scientists explained the interactions of different microorganisms with HIV.
There is still no effective vaccine or cure for HIV. Scientists are considering options ranging from longer-term antiretroviral therapy (ART) that space out injections by several years to long-lasting pre-exposure prophylaxis (PrEP) that acts as a vaccine while immunization is achieved. What else can be done?
